Air lift-pump.



PATENTED oo'r; 6,1903.v

J. in cousz. AIR. LIFT PUMP.

APPLIGATION FILED NOV. 11, 1902.

R0 MODEL.

ma i/T0 l C]0/?7Z 2 605058 f/azam/ Md F WITNESSES NITED STATES PatentedOctober 6, 1903.

JOHN P. ooUsn-or GLENDALE, CALIFORNIA.

AIR LIFT-PUMP.

SPECIFICATION forming part of Letters Patent No. 740,999, dated October6, 1903.

' Application filed November 11, 1902. Serial No. 130,928. (No model.)

0 at whom it may concern:

4 Be it known that 1, JOHN P. COUSE, acitizen of the United States,residing at Glendale, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Air Lift-Pumps,of which the following is a specification.

My invention relates to pumps for raising water by compressed air; andthe objectthereof is to produce a pump of great efficiency for thatpurpose. I accomplish that object by the pump described herein andillustrated in the accompanying drawing, which isa View, partly insection and partly in elevation, of my improved pump.

In the drawing, A is the well-casing, within which is the delivery-pipeB, which extends from the extra supply-chamber O to the surface of theground D. The top of this chamber is tapering, as shown. In the bottomof the extra supply-charnber is an annular fittingE, through whichextends a number of ports F, the tops of which form seats for the ballvalve-stoppers G. Between the valvestoppers are partitions E, which forma part of the fitting E and keep the valve-stoppers in place. Withinthis fitting and secured thereto is the pump-chamber H, which extendsbelow the extra supply-chamber and up to nearly the lower end of thedelivery-pipe. The lower end of the pumping-chamber is preferablyprovided with an upwardly-opening valve I. Connected with anair-compressor (not shown) is the compressed-air-supply pipe J, whichpasses down through the delivery-pipe and into the pumping-chamber,where it terminates a short distance above the lower end thereof in aperforated end J The pumping-chamber and extra supply-chamber and lowerend of the'air-pipe are submerged in the water the required depth, whichis preferablya little greater than the distance from the normal surfaceof the water in the well to the discharge-outlet in the pump, and asupply of compressed air is pumped into the pumping chamber and passesup therethrough and out with the water through the delivery-pipe. Itwill also be observed that the flow of water is started in thepumpingchamber and is augmented by the inflow from the extrasupply-chamber while the water is in motion. It will also be observedthat the check-valves after the delivery-pipe is filled will keep thesame practically full of water and that thereafter the water willcommence to flow from the delivery-pipe almost as soon as theair-compressor is started. If desired, the extra supply-chamber could beomitted; but I prefer it, as a greater supply of water can be pumpedwith it than without its use.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. In an air lift-pump the combination of a delivery-pipe; an extrasupply-chamber havinga tapering top attached to the lower end of saiddelivery-pipe; an annular fitting in the lower end of saidsupplychamber, said fitting having vertical ports extending therethroughand upwardly-extending partitions intermediate said ports; ballvalve-stoppers between said partitions; a pumping-chamber extendingthrough said fitting provided withan upwardly-opening check valve in thebottom thereof.

2. In an air lift-pump the combination of a delivery-pipe; an extrasupply-chamber having a tapering top attached to the lower end of saiddelivery-pipe; an annular fitting in the lower end of said chamberhaving vertical ports extending therethrough; ball valvestoppers betweensaid partitions; a pumpingohamber extending through said fittingprovided with an upwardly-opening check-valve in the bottom thereof. I

In witness that I claim the foregoing I have hereunto subscribed my namethis 3d day of November, 1902.

JOHN P. COUSE. -W'itness'es:

G. E. HARPHAM, HENRY T. HAZARD.

